Chevy LS 427 LS Next Power Adder Long Blocks
LS Series

Chevy LS 427 LS Next Power Adder Long Blocks

Chevy LS 427 LS Next Power Adder Long Blocks Shown With Optional Equipment
427 LS Next Dyno Tested
Long Blocks

Looking To Run An LS Platform Engine With A Turbo, Supercharger Or Nitrous? You're Going To Need One Of These!!

Order One Of Our 427 LONG Blocks For A Strong And Reliable Foundation. Just Pick Your Level Of Strength And We Supply Those High Quality Parts Along With Our World Famous Precision CNC Machine Work And Balancing. The Finishing Touch Is One Of Our Ultra Experienced Race Engine Assemblers Puts Your Short Together With Exact Blueprint Tolerances And The Extra Care Only A True Professional Can Deliver.

  • 427 Bore & Stroke
  • Compression Ratio
  • 4.125 x 4.000
  • 9.5 to 1



Supercharged / Turbo / Nitrous

Stage I

Rated For Up To 1200 HP

  • Dart SHP LS Next Block
  • Manley 4340 Non-Twist Forged Steel Crank (1)
  • Manley 4340 H-Tuff Forged Steel Rods
  • ARP 2000 Rod Bolts
  • Diamond LSX 2K 2618 Forged Pistons
  • H-13 Steel Wrist Pins
  • AP Steel Ring Set
  • Clevite 77 "H" Series Main & Rod Bearings
  • Complete Assembly Internally Balanced
  • Mallory Included (where necessary)
  • SSRE/Comp Custom Grind Hydraulic Cam
  • Hi-Rev Hydraulic Roller Lifters
  • Rollmaster Billiet Timing Set w/IWIS Chain
  • ATI Super Damper Harmonic Balancer

  • AFR LS3 Mongoose 260cc 12° Heads
  • Fully CNC Ported w/6 Bolt Configuration
  • 2.165"/1.600" 8mm Stainless Bead Lock Valves
  • PAC Racing Hydraulic Roller Springs
  • 7° Bead Lock Titanium Retainers
  • GM LS3 Rockers Arms w/Bushed Trunions
  • Chromemoly 3/8 .080" Wall Pushrods
  • Cometic MLS Head Gaskets
  • ARP Head Stud Kit For 6 Bolt Heads

  • GM Aluminum Front & Rear Cover w/Seal
  • GM Aluminum Valley Cover
  • Melling Race Prepped Oil Pump
  • GM Muscle Car Oil Pan w/Windage Tray
  • Holley Valve Covers w/Coil Bosses
  • Individually Dyno Tested With Carb & Intake
$ 14,675

Stage II

Rated For Up To 1500 HP

  • Dart SHP "Pro" LS Next Block
  • Dragonslayer 4340 Forged Steel Crank (1)
  • Callies Ultra-H 4340 H-Beam Forged Rods
  • ARP 2000 Rod Bolts
  • Diamond LSX 2K 2618 Forged Pistons
  • H13 Steel Wrist Pins
  • AP Steel Ring Set
  • Clevite 77 "H" Series Main & Rod Bearings
  • Complete Assembly Internally Balanced
  • Mallory Included (where necessary)
  • SSRE/Comp Custom Grind Hydraulic Cam
  • Hi-Rev Hydraulic Roller Lifters
  • Rollmaster Billiet Timing Set w/IWIS Chain
  • ATI Super Damper Harmonic Balancer

  • AFR LS3 Mongoose 260cc 12° Heads
  • Fully CNC Ported w/6 Bolt Configuration
  • 2.165"/1.600" 8mm Stainless Bead Lock Valves
  • PAC Racing Hydraulic Roller Springs
  • 7° Bead Lock Titanium Retainers
  • GM LS3 Rockers Arms w/Bushed Trunions
  • Chromemoly 3/8 .080" Wall Pushrods
  • Cometic MLS Head Gaskets
  • ARP Head Stud Kit For 6 Bolt Heads

  • GM Aluminum Front & Rear Cover w/Seal
  • GM Aluminum Valley Cover
  • Melling Race Prepped Oil Pump
  • GM Muscle Car Oil Pan w/Windage Tray
  • Holley Valve Covers w/Coil Bosses
  • Individually Dyno Tested With Carb & Intake
$ 16,500

Stage III

Rated For Up To 2000 HP

  • Dart SHP "Pro" LS Next Block
  • Callies Magnum Fully CCW 4340 Steel Crank (1,2)
  • Callies Ultra-I 4340 I-Beam Forged Rods
  • Callies/ARP Ultra Bolt
  • Diamond LSX 2K 2618 Forged Pistons
  • H-13 Steel Wrist Pins
  • AP Steel Ring Set
  • Clevite 77 "H" Series Main & Rod Bearings
  • Complete Assembly Internally Balanced
  • Mallory Included (where necessary)
  • SSRE/Comp Custom Grind Hydraulic Cam
  • Hi-Rev Hydraulic Roller Lifters
  • Rollmaster Billiet Timing Set w/IWIS Chain
  • ATI Super Damper Harmonic Balancer

  • AFR LS3 Mongoose 260cc 12° Heads
  • Fully CNC Ported w/6 Bolt Configuration
  • 2.165"/1.600" 8mm Stainless Bead Lock Valves
  • PAC Racing Hydraulic Roller Springs
  • 7° Bead Lock Titanium Retainers
  • GM LS3 Rockers Arms w/Bushed Trunions
  • Chromemoly 3/8 .080" Wall Pushrods
  • Cometic MLS Head Gaskets
  • ARP Head Stud Kit For 6 Bolt Heads

  • GM Aluminum Front & Rear Cover w/Seal
  • GM Aluminum Valley Cover
  • Melling Race Prepped Oil Pump
  • GM Muscle Car Oil Pan w/Windage Tray
  • Holley Valve Covers w/Coil Bosses
  • Individually Dyno Tested With Carb & Intake
$ 17,500
  • Footnotes:
  • (1) 58T Reluctor Wheel Standard. 24T Reluctor Wheel Available at No Extra Charge
  • (2) Fully Center Counterweighted Design
Blocks
Dart LSNext Aluminum Block $3500
Crankshafts
3.622" (388 Cu.In.) Stage I, Stage II or Stage III $Call
3.750" (401 Cu.In.) Stage III Only $Call
Pistons - Pins - Rings - Bearings
Custom Compression Ratios Available $Call
Valvetrain
Severe Duty Inconel Exhaust Valves $350
Crower Stainless Steel Shaft Rocker System $Call
Oil Pumps - Oil Pans - Vacuum Pump
GM Vehicle Specific Oil Pan $Call
Holley Muscle Car Retrofit 6 Quart Oil Pan Includes Custom GM Full Length Windage Tray and Holley "Road Race" Baffle Kit $465
Moroso Street/Strip 7 Quart Welded Steel Oil Pan Includes Custom GM Full Length Windage Tray and Baffle KitImage Close$335
Additional Parts - Labor - Accessories
Master Power Silent Drive Vacuum Pump Kit For Power BrakesImage Close$589
Ignition Package Includes: (8) Coil Packs, Spark Plug Wires, Cam Sensor, Crank Sensor w/Engine Wiring Harnesses $895